Duplex flush-tank.



B.V E. LINFOOTi f DUPLEX FLUSH TANK. APPLICATION HLED Nov. z'z, 1911.

Patented Dee. 2, 1919.

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B. E. LINFOOT.

DUPLEX FLUSH TANK.

APPLICATION FILED Nov.22.19I7.

1,323,708. PaIenIed Dee. 2,1919.

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L ATTORNEYS m lTED ST nr smo Np DUPLEX FLUSH-TANK.

Specification of Letters Patent.

Patenten nec. 2, ieie.

Application led November 22, 1917. Serial No. 203,304.

To all whom it may concern:

Be it known that I, BENJAMIN E. LIN- rooT, a citizen of the UnitedV States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful -DupleX Flushflank,v of which the'following is a specification.

' 'My invention consists of a iiush tank in which provision is made for flushing a closet bowl with different quantities of water according as the latter may be used for urination alone or for fecal matters. To this end,

' I employ within the tank a supplemental chamber which operates in conjunction with the discharge valve of the tank to allow water toescape from the tank to a limited extent or `toa greater extent accordingt to requirements, thus effecting a saving of water, the construction and operation of the device being hereinafter set Vforth and the novel features thereof pointed out in the claims that follow the specification.

The invention is satisfactorily illustrated inthe accompanying drawing, but the important instrumentalities thereof may be varied, and so it is to be understood that the invention is not limited tothe Vspecific de-l tails shown and described, as long as theyV are within the spirit or scope of the claims.

Figure 1 represents a vertical section of a flush tank embodying my invention, the

members thereof being in normal position.

Fig. 2 represents asimilar view thereof,

.certain members being in different positions from that shown in Fig. 1.

Fig. 3 represents a similar view thereof, certain members thereof being in a different position from those shown in Figs. 1 and 2.

Fig. 4 represents a side elevation of an indicating plate employed.

Similar numerals of reference indicate corresponding parts in the figures.`

Referring to the drawings 1 designates the tank proper of a flush tank, and 2 the supply pipe thereof, said pipe being provided with the valve 3 and float 4 connected therewith, as well known.

tached the chainI 8, the latter extending downwardly to said arms from the rotatable head 9, the latter being mountedpivotally on the eai'slO on the top of the tank.

Within the tank on the bottom thereof is the Vseat 11 for a ball vvalve 12l of the discharge pipe 13 which members of themselves are also well known. Y

Rising from said valve 12 is the stem 14 whose upper end passes freely through the lower limb of the elbow 15, whose upper limb is connected with the lever 16, the latter being adapted to raise the valve from its seat and having connected with it outside of the tank the chain 17, both as also well known. i

In order to prevent disconnection of the stem 14 and elbow 15, the upper end of the former is provided with the bend 18, for evident purposes.

The casing of the. valve 3 has connected with it the pipe 19, the latter leading to the upper end of the tube 20 and opening thereinto, said tube having its lower end communicating with the inlet 20X which opens into the base of the tank.

A portion of the periphery of the head 9 is cutaway so as to expose the words Full,.

l-lalf, marked on one of the ears 10, the same forming a gage having reference to the quantity of water Vthat may be used for flushing purposes, the normalposition of the parts being shown in Fig. 1, where the word Half is exposed.

The operation is as follows l/Vhen it is desired to discharge but a limited quantity of water, say about one-half of that in the tank, for flushing the Closet bowl in the case of urination, the head 9 the chamber 5 and the ball valve 12 remain undisturbed, as in said figure, it being noticed that the lower portion of said chamber surrounds the ball valve and its seat, while the chamber rests closed on the bottom of the tank. The lever 16 is now operated, whereby the valve 12 is raised and consequently opened, as in Fig. 2, when the water flows out of the tank through said chamber 5 and flushes the bowl with the quantity of water that has lowered in the tank to the level of the top of the chamber 5, see Fig. 2, the quantity of water being half or about half that originally in the tank. As the chain of the lever 1'6 is let go, the valve 12 returns to its seat or is allowed to ret-urn to its seat, the float 4 then dropping to partial extent and also opening the supply valve as usual in flush tanks.

When it is desired to flush the closet bowl to full extent, the parts being in position as in Fig. l, the head 9 is rotated, in the direction indicated by the arrow, whereby it uncovers the word Fullnand covers the word Halt The chamber 5 is thus raised from its seat on the bottom of the tank and has its bottom uncovered, see Fig. 3. The lever 16 is also operated whereby the valve 12 is opened, and the water will flow through the seat thereof to the discharge pipe 13, thus draining the tank almost of its contents, excepting the small quantity that may remain therein on the level of thel seat o1'l the valve 12, as also shown in said Fig. 3.

The ioat 4L falls to its lowest extent opening the valve 3 and causing the tank to be refilled, when said float then rises to its normal position closing said valve 3. The head 9 may now be returned to its normal position, which is as shown in Fig. 1, and the vchamber 5 descends, when its lower end is again seated on the bottom of the tank, thus closing said chamber from below.V

As the lever 16 is meanwhile let go the valve l2 returns or is permitted to return to its closed position, when the parts are again in position, as in said Fig. 1.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is

1. In a ush tank, a .discharge valve, a supplemental chamber normally resting on the bottom of the tank, said chamber having a closed side wallV and an open top and bottom and being adapted to be moved whereby in'one position its bottom is closed, and in another position said bottom is opened, said chamber operating in combination with said discharge valve to cause flushing of a closet bowl with a less or a greater amount of wateras desired. Y

2. In a Hush tank a discharge valve, a movable supplemental chamber in said tank, said chamberhavingjits side wall adapted `to inclose said discharge valve," and being open at the-top and bottom, said chamber adaptingV it as an outlet for water to said valve, in combination withmeans for moving said chamber to uncover said outlety to a variable extent whereby a closet bowl may be flushed witha less or greater amount of water as desired.

BENJAMIN E. LINFOOI. Witnesses:

Jorm A. WIEDERSHEIM, N. BUSSINGER. 

